SPAF is a meaningless word. It's flexible, versatile and utterley meaningless; it can apply in any situation. If in doubt, say 'SPAF', and the situation somehow becomes bleakly funnier. www.spaf.tk details the invention and rise of SPAF, as a meaningless diversion invented to pass the time by so-called 'gifted' teenagers.

Spaf: name of one of the early Internet "net.god"'s . Like Cher and Madonna, Spaf is publically known by his singular name "Spaf". In terms of High Tech security, He is a peer of Bruce Schneier.
Spaf was one of the people responsible for how people began using the internet to share information in its earliest days, before browsers and other more convienent tools. He also provided the first analysis of the first large scale Internet Virus attack, known as the "Morris worm".

Member of the President's Information Technology Advisory Committee 2003-2005, has been an advisor to the National Science Foundation (NSF), and serves as an advisor to over a dozen other government agencies and major corporations.

He is the Executive Director of the Purdue University Center for Education and Research in Information Assurance and Security (CERIAS). .

He is a full professor at Purdue University, with multiple PhD's.

On wikipedia.com under the title "Spaf"

"If not the very the leading expert on cyber security in the world today, Spaf must be considered at least on of the top five leading experts in that field. The only other individual with the same level of expertise is Bruce Schneier."